from hookvision.config_loader import load_config
from hookvision.models import ModuleType, CameraPosition


class TestLoadConfig:
    def test_load_rfid_config(self, sample_config_path):
        config = load_config(sample_config_path)
        assert config.app_name == "测试系统"
        assert config.module_type == ModuleType.RFID
        assert config.rfid is not None
        assert config.rfid.ip == "192.168.1.1"
        assert config.rfid.port == 60000
        assert config.modbus is None
        assert config.ai.enabled is False

    def test_load_buckets(self, sample_config_path):
        config = load_config(sample_config_path)
        assert len(config.buckets) == 1
        bucket = config.buckets[0]
        assert bucket.id == 1
        assert bucket.description == "测试工位"
        assert bucket.code_x == "TEST001"
        assert len(bucket.cameras) == 2

    def test_load_cameras(self, sample_config_path):
        config = load_config(sample_config_path)
        bucket = config.buckets[0]
        left = next(c for c in bucket.cameras if c.position == CameraPosition.LEFT)
        right = next(c for c in bucket.cameras if c.position == CameraPosition.RIGHT)
        assert left.rtsp_url == "rtsp://test:test@192.168.1.10:554/stream1"
        assert left.topic == "test/left"
        assert right.rtsp_url == "rtsp://test:test@192.168.1.11:554/stream2"
        assert right.topic == "test/right"

    def test_load_video_config(self, sample_config_path):
        config = load_config(sample_config_path)
        assert config.video.rtsp_timeout == 5.0

    def test_config_file_not_exists(self, tmp_path):
        from configparser import NoSectionError
        path = tmp_path / "nonexistent.ini"
        import pytest
        with pytest.raises(NoSectionError):
            load_config(str(path))


def _write_ai_config(path, extra_ai_lines=""):
    path.write_text(
        f"""[App]
name = 测试系统
copyright = 测试
screen = 0

[Video]
rtsp_timeout = 5

[Hardware]
module_type = RFID

[RFID]
ip = 192.168.1.1
port = 60000
stability_time = 5
stability_count = 3

[AI]
enabled = true
{extra_ai_lines}
""", encoding="utf-8"
    )


class TestAutoCalibConfig:
    def test_missing_keys_use_defaults(self, tmp_path):
        path = tmp_path / "config.ini"
        _write_ai_config(path)
        config = load_config(str(path))
        assert config.ai.auto_calib_ready_frames == 3
        assert config.ai.auto_calib_duration_secs == 1.0
        assert config.ai.auto_calib_min_samples == 2

    def test_custom_values_loaded(self, tmp_path):
        path = tmp_path / "config.ini"
        _write_ai_config(
            path,
            "auto_calib_ready_frames = 10\n"
            "auto_calib_duration_secs = 2.5\n"
            "auto_calib_min_samples = 4\n",
        )
        config = load_config(str(path))
        assert config.ai.auto_calib_ready_frames == 10
        assert config.ai.auto_calib_duration_secs == 2.5
        assert config.ai.auto_calib_min_samples == 4

    def test_missing_keys_auto_initialized(self, tmp_path):
        path = tmp_path / "config.ini"
        _write_ai_config(path)
        load_config(str(path))
        text = path.read_text(encoding="utf-8")
        assert "auto_calib_ready_frames = 3" in text
        assert "auto_calib_duration_secs = 1.0" in text
        assert "auto_calib_min_samples = 2" in text
        reloaded = load_config(str(path))
        assert reloaded.ai.auto_calib_ready_frames == 3
        assert reloaded.ai.auto_calib_duration_secs == 1.0
        assert reloaded.ai.auto_calib_min_samples == 2

    def test_existing_custom_keys_not_overwritten(self, tmp_path):
        path = tmp_path / "config.ini"
        _write_ai_config(path, "auto_calib_ready_frames = 7\n")
        load_config(str(path))
        text = path.read_text(encoding="utf-8")
        assert "auto_calib_ready_frames = 7" in text
        assert "auto_calib_duration_secs = 1.0" in text